MA-L: a full /24 OUI block, IEEE's largest, covering 16,777,216 addresses.
Prefix00:0D:3D:00:00:00 /24
Vendor address640 Clyde Court Mountain View California US 94043
Country🇺🇸 United States
RegisteredJun 1, 2003
Block range00:0D:3D:00:00:00– 00:0D:3D:FF:FF:FF
Address capacity16,777,216
AdministrationUniversally administered: its prefix comes from a block registered through the IEEE Registration Authority
TransmissionUnicast: addressed to a single device
SourceIEEE Registration Authority
Address capacity is the size of this registered block, not a count of devices actually manufactured or online. Registration identifies the organization holding the block, not a specific device model or unit.
Curious how a prefix like this turns into a full address? See how MAC addresses are structured →
Ownership timeline
- Jun 1, 2003 – May 7, 2005 Private name changedaddress changedcountry changed
- May 7, 2005 – present Hammerhead Systems, Inc.
Example addresses in this block
Where this block sits
Previous
00:0D:3C:00:00:00 /24
i.Tech Dynamic Ltd
Next
00:0D:3E:00:00:00 /24
APLUX Communications Ltd.
The nearest registered blocks of the same size on either side of this one in IEEE's address space.
Hammerhead Systems, Inc. holds 1 registered blocks in the IEEE registry, ranking #14,345 of 33,427 organizations by block count.